Draw any retrosynthetic sequence where a hydroxyl cycloalkane retron can be retrosynthesized into an appropriate cycloalkene, where the cycloalkene can be retrosynthesized into an appropriate cycloalkane halide. While you are allowed to work out this problem synthetically, you MUST report your final response in the retrosynthetic direction using the symbology we learned in lecture/
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- Several reagents and several organic structures are shown below. Construct a multistep synthetic route from the reactant 2-methyl-1-butene to the product 3-bromo-2-methyl-2-butanol by dragging the appropriate pieces into the bins. Note that each bin will hold only one item, and not every given reagent or structure will be used.For each compound predict if it's positive or negative for AgNO3/EtOH Test (SN1), propose 1 sentence explanation why. 2-Bromobutane 1-bromobutane 2-Chlorobutane 1-chlorobutane t-butyl chloride benzyl chloride bromobenzene bromocyclohexane bromocyclopentaneDraw curved arrows to show the movement of electrons in the step of the mechanism shown below. Arrow-pushing Instructions NOC XT :: [MgX]* H3C-C-0-CH3 CH₂CH₂CH3 :0: || H3C-C-CH₂CH₂CH3 + HạC—O: [MgX]* A ketone X
- Construct a multistep synthetic route from ethylbenzene to (2-bromoethyl)benzene by dragging the appropriate items into the bins. Note that each bin will hold only one item, and not all reagents and structures will be used.Give a reasonable mechanism for each indicated reaction above. Use audiuonal sheets, make sure you draw large enough for your work to be clearly understood, and attach them in order. Then, do the same for letter x, below. 1. Hg(OAc)2, H2O OH х) 2. NABH4, NaOHConstruct a multistep synthetic route from ethylbenzene to (2-bromoethyl)benzene by dragging the appropriate items into the bins. Note that each bin will hold only one item, and not all reagents and structures will be used. Reagent 3 Reagent 1 Reagent 2 Final product ((2-bromoethyl)benzene) Reactant Step 1 product Step 2 product (ethylbenzene) HBr NBS HBr Br2 CH3 Br. Н.С CH2 НС Br2 Br Br Br CHз CH ROOR CH2C2 ROOR hv CH2 CH Br. НС CH2 Н.с CH (CH3)3CO K*
- Help me pleaseAcyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. H3C NH₂ HCI/H₂O reflux • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Na+, I, in your answer. • In cases where there is more than one answer, just draw one.R-CEN MR-Cool эк-соон Hr write acid catalyzed mechanism
- Ethers containing the 1,1-dimethylethyl (tert-butyl) group are readily cleaved with dilute, strong acid. Draw curved arrows to suggest a plausible mechanism for this process. H₂C-CH₂ CH3 H₂C CH-O Step 1: Draw a curved arrow. H₂C H₂ H₂ c c H₂ -CH3 HC H3C H₂C-CH₂ CH3 Do not delete any pre-drawn bonds, charges, or lone pairs. If you accidentally make a mistake, remove the last change by using the undo button on the lower left or revert the drawing palette to the original state by selecting the More menu, then select Reset Drawing. H + CF3CO₂H, H₂O H₂C-CH₂ CH₂ CH₂ H₂C H₂C Ofe-046 CH₂ I CH-OH H₂C-CH₂ H₂ Step 2: Draw a curved arrow. H₂ с + с H3C H₂ C=CH₂ HC H C CH3 CH₂ CH₂ ↑In the problem-solving feature below, methylcyclohexanone was seen to react at its unsubstituted c carbon. Try to write a mechanism for the same reaction at the methylsubstituted carbon atom, and explain why this regiochemistry is not observed. CH₂CH₂0- H H O CH3 Н. O CH, H. :0: + CH₂CH₂OH Draw all missing reactants, reagents, Intermediates, and/or products inside the appropriate boxes by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars. CH₂H3C Arrow-pushing Instructions NA H3C H3 C CH3 H3C CH3 Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br₂, or I2, under acidic conditions. Using Br₂ under acidic conditions, an intermediate enol is formed which adds bromine at the a-position. The reaction stops after the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen, making the protonation less favorable. Draw curved arrows to show the movement of electrons in this step of the mechanism. :OH H3C CH3 Submit Answer CH3 XT FCH₂ Br₂, H3O+ Br-Br H3C H3C. :OH H3C CH3 CH₂Br Retry Entire Group 9 more group attempts remaining Br Br